CN107526063A - The method of radar equipment and processing radar signal - Google Patents
The method of radar equipment and processing radar signal Download PDFInfo
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- CN107526063A CN107526063A CN201710470373.9A CN201710470373A CN107526063A CN 107526063 A CN107526063 A CN 107526063A CN 201710470373 A CN201710470373 A CN 201710470373A CN 107526063 A CN107526063 A CN 107526063A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 91
- 239000002131 composite material Substances 0.000 claims abstract description 91
- 230000010287 polarization Effects 0.000 claims abstract description 68
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000005388 cross polarization Methods 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/024—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/245—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction provided with means for varying the polarisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/001—Crossed polarisation dual antennas
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Security & Cryptography (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
This disclosure relates to a kind of radar equipment and the method using radar equipment process signal, more particularly, to the apparatus and method using the reception signal of an array antenna received and processing with different polarization feature.The disclosure, which provides a kind of radar equipment and method for processing radar signals, radar equipment, to be included：Remote transmission antenna element, include one or more remote transmission array antennas of the first polarizing emission signal of transmitting；Short range transmission antenna unit, include one or more short range emission array antennas of the second polarizing emission signal of transmitting；Composite array antenna element, including receive by reflecting the first polarizing emission signal and the second polarizing emission signal from target and the first polarized reception signal received and one or more composite array antennas of the second polarized reception signal；Signal processing unit, using the first polarized reception signal and the second polarized reception signal detection target, wherein the first polarized reception signal has cross polarization feature relative to the second polarized reception signal.
Description
The cross reference of related application
This application claims the Application No. 10-2016-0076250 submitted on June 20th, 2016 korean patent application
Priority, it is incorporated herein by reference for all purposes, as herein completely illustrate.
Technical field
This disclosure relates to a kind of radar equipment and the method using radar equipment process signal, more specifically it relates to one
Kind has the apparatus and method of the reception signal of different polarization feature using an array antenna received and processing.
Background technology
Radar Technology refers to receive using by the signal by the transmitting antenna of radar equipment launched from target reflection
Reception signal come detect target and obtain on target information technology.
This Radar Technology is used in such as every field of vehicle, aircraft or military purposes.Specifically, in recent years
To have developed the radar equipment for vehicle in vehicle so that the application of Radar Technology gradually expands.
In addition, because radar equipment is arranged in vehicle, the exploitation of small-sized and inexpensive radar is being carried out.
However, in the case of the radar equipment for vehicle, reduce with the size of radar, it is small that antenna implements space
Type and due in proximity space antenna output implement and transmitting and receive may cause interference problem.
Meanwhile include being used for detection positioned at the remote antenna of the target of distant location and be used for for the radar equipment of vehicle
Detect the short range antenna in the target of short distance.However, designing and verifying for convenience, remote antenna and short range antenna use
Signal with identical polarization characteristic is implemented.
Therefore, although needing the radar equipment for vehicle of correlation technique to reduce the size of radar equipment, but it is
The channel of configuration predetermined quantity ensures the performance of radar, it is difficult to reduces the size of hardware.
The content of the invention
The disclosure proposes a kind of letter for being used using a reception antenna, the function based on antenna and having different polarization feature
Number long-range and short range reception signal treatment technology.
In addition, the disclosure proposes a kind of quantity by reception chip of the reduction for the radar equipment of vehicle to reduce use
In the radar equipment of vehicle size and the quantity of channel is maintained into predeterminated level so that it is guaranteed that the technology of the performance of antenna.
According to the one side of the disclosure, there is provided a kind of radar equipment, it includes：Remote transmission antenna element, it includes hair
Penetrate one or more remote transmission array antennas of the first polarizing emission signal；Short range transmission antenna unit, it includes transmitting the
One or more short range emission array antennas of two polarizing emission signals；Composite array antenna element, it include receive by from
Target reflects the first polarizing emission signal and the second polarizing emission signal and the first polarized reception signal received and second inclined
The one or more composite array antennas for reception signal of shaking；And signal processing unit, its using the first polarized reception signal and
Second polarized reception signal detection target, intersect partially wherein the first polarized reception signal has relative to the second polarized reception signal
Shake feature.
According to another aspect of the present disclosure, there is provided a kind of method for processing radar signals, it includes：Transmission signal transmitting step
Suddenly, it is launched the first polarizing emission signal using one or more remote transmission array antennas and sent out using one or more short ranges
Penetrate array antenna and launch the second polarizing emission signal；Reception signal receiving step, it is received logical by a composite array antenna
Cross the first polarized reception signal for reflecting the first polarizing emission signal and the second polarizing emission signal from target and received and the
Two polarized reception signals；And detecting step, it uses the first polarized reception signal and the second polarized reception signal detection target,
Wherein the first polarized reception signal has cross polarization feature relative to the second polarized reception signal.
According to the another further aspect of the disclosure, there is provided a kind of radar equipment, it includes：First composite array antenna element, its
Including the first polariton array antenna group and the second polariton array antenna group, the first polariton array antenna group includes
Receive one or more the first polariton array antenna of the first polarized reception signal, the second polariton array antenna group bag
Include one or more the second polariton array antenna for receiving the second polarized reception signal；And the second composite array antenna list
Member, it includes the first polariton array antenna group and the second polariton array antenna group, the first polariton array antenna
Group includes receiving one or more the first polariton array antenna of the first polarized reception signal, the second polarization subarray day
Line group includes receiving one or more the second polariton array antenna of the second polarized reception signal, wherein the first composite array day
Between first polariton array antenna group of line unit and the first polariton array antenna group of the second composite array antenna element
The of distance than the second polariton array antenna group and the second composite array antenna element of the first composite array antenna element
The distance between two polariton array antenna groups are long.
As described above, according to the disclosure, for detecting the signal of remote object and signal quilt for detecting aim in short distance
It is configured to that there is different polarization characteristics to handle reception signal using a reception antenna.
In addition, according to the disclosure, a reception antenna processing reception signal is used to cause while reception antenna is reduced
Maintain the channel of identical quantity.
In addition, according to the disclosure, the size of radar equipment is reduced while identical performance is provided.
Brief description of the drawings
From will be more clearly understood below in conjunction with the detailed description of accompanying drawing the disclosure it is above and other in terms of, feature and its
Its advantage, wherein：
Fig. 1 is the view of configuration of the explanation for the radar equipment of vehicle；
Fig. 2 is the remote antenna for the exemplary embodiment that explanation can be applied to the disclosure and the polarization characteristic point of short range antenna
View with configuration；
Fig. 3 is the view of the configuration for the radar equipment for illustrating the exemplary embodiment according to the disclosure；
Fig. 4 is to illustrate to polarize the radar equipment with horizontal polarization vertically according to the use of the exemplary embodiment of the disclosure
The view of structure；
Fig. 5 is illustrated according to the circulator for composite array array signal processing of the exemplary embodiment of the disclosure point
The view of the structure of orchestration；
Fig. 6 is the view for the structure for illustrating the composite array antenna according to the exemplary embodiment of the disclosure；
Fig. 7 is to illustrate to be regarded according to what the submatrix array antenna of the composite array antenna of the exemplary embodiment of the disclosure was arranged
Figure；
Fig. 8 is regarding for the structure for the radar equipment for illustrating 45 degree of polarizations of use according to the exemplary embodiment of the disclosure
Figure；And
Fig. 9 is the view for the method for processing radar signals for illustrating the exemplary embodiment according to the disclosure.
Embodiment
Hereinafter, some exemplary embodiments of the disclosure be will be described in detail with reference to the accompanying drawings.When reference represents attached
During part in figure, although identical part is shown in different drawings it should be appreciated that identical reference
Represent identical part.In addition, when judge can to the specific descriptions of known configurations or function related in the description of the disclosure
When putting of the disclosure can be unnecessarily obscured, is described in detail omitting.
In addition, it will be described in detail with reference to the accompanying drawings some exemplary embodiments of the disclosure.In the exemplary of the description disclosure
During the part of embodiment, the terms such as first, second, A, B, (a), (b) can be used.However, such term is only used for
Part and another part are distinguished, and the property of part, order or sequence are not limited by term.If describe part " being connected to "
Or " being attached to " other parts, then it should be understood that the part is connected directly to or be attached to other parts, but another part
" can connect " or " connection " between the parts.
The disclosure discloses the radar of a kind of size that can reduce hardware while the target detection performance for maintaining radar equipment
Equipment and method for processing radar signals.Although the radar equipment for convenience of description, described in specification is applied to vehicle
As an example, but radar equipment can apply to aircraft, ship or train.That is, the exemplary implementation according to the disclosure
The radar equipment of example can be configured in various devices to be used, but use environment is not particularly limited.In addition, in order to
It is easy to illustrate, in the disclosure, although essentially describing CW with frequency modulation (FMCW) radar equipment, the disclosure will similarly
Applied to CW radar equipments and impulse type radar equipment.In addition, in the following description, although being described as example by one
Individual or multiple paster antennas arrangement transmitting and reception signal array antenna, but the disclosure can apply to launch and
Receive various types of antennas of the signal with polarization characteristic.
Radar needs to detect the target in various distances.For example, the radar for vehicle in vehicle can be with
Short range antenna including detecting the remote antenna of the remote object away from vehicle and the aim in short distance of detection du vehicule.Therefore,
Radar equipment for vehicle includes the array antenna for the array antenna of remote detection and for short range detection.
Fig. 1 is the view of configuration of the explanation for the radar equipment of vehicle.
Reference picture 1, the radar equipment for vehicle include the long-range hair that output is used to detect the transmission signal of remote object
Penetrate antenna element 110 and export the short range transmission antenna unit 120 of the transmission signal for detecting aim in short distance.In addition, it is used for
The radar equipment of vehicle includes the emission controlling unit 190 of the output of control transmission signal.In addition, the radar equipment for vehicle
Including receive by from target reflected transmitted signals and the reception antenna of reception signal that is received.For example, reception antenna can be with
Configured by following：It is near and the one or more of the short range reception signal received by being reflected from aim in short distance for receiving
Journey reception antenna unit 130 and 135, and for receiving by being reflected from remote object and the remote receiving signal that is received
One or more long-range reception antenna units 140 and 145.In addition, radar equipment includes control reception signal and controls reception day
The reception control unit 195 of the operation of line.Meanwhile the reception control unit 195 of radar equipment is received using transmission signal extraction
Signal so that local line can be connected between emission controlling unit 190 and reception control unit 195.Believe on transmitting
Number information reception control unit 195 is transferred to by local line.
Meanwhile remote transmission antenna element 110 may be configured to include multiple submatrix array antennas with by forming narrow ripple
Beam figure (pattern) accurately detects target.On the contrary, short range transmission antenna unit 120 can only include a subarray day
Line by forming broad beam figure to form wide detection range.
Meanwhile short range reception antenna unit 130 and 135 can configure multiple channels to improve the performance of radar equipment and essence
Really detect target.Therefore, by the signal that a short range transmission antenna unit 120 is launched by two short range reception antenna units
130 and 135 receive.Similarly, long-range reception antenna unit 140 and 145 can also be configured by two channels.Therefore, receive
Control unit 195 needs to be configured by four reception chips.Although in the above description, short range reception antenna and long-range reception day
Two channels of each configuration in line, but two or more channels can also be configured according to the requirement to radar equipment.
As described above, in order to improve the performance of radar equipment, it is necessary to configure multiple channels.Therefore, predetermined number is needed for this
Amount or more reception chip.Therefore, in the case where needing to minimize radar equipment, also requiring that ensures hardware installation
The predeterminated level in space.
Fig. 2 is the remote antenna for the exemplary embodiment that explanation can be applied to the disclosure and the polarization characteristic point of short range antenna
View with configuration.
Reference picture 2, radar equipment are configured such that the transmission signal polarization characteristic of short range transmission antenna unit 220
It is different from the transmission signal polarization characteristic of remote transmission antenna element 110.For example, in remote transmission antenna element 110, paster
Antenna is arranged to signal of the transmitting with vertical polarization characteristic.In short range transmission antenna unit 220, paster antenna is arranged
Into signal of the transmitting with horizontal polarization feature.Meanwhile for receiving by being connect from target reflected transmitted signals and what is received
Collect mail number reception antenna can by with transmission antenna unit identical paster antenna arrange configure with receives with and transmitting
The reception signal of signal identical polarization characteristic.
For example, in order to receive the reception signal with horizontal polarization feature, short range reception antenna unit 230 and 235 can be with
By by arranging the paster antenna to set with the identical of short range transmission antenna unit 220 to configure.Similarly, day is remotely received
Line unit 140 and 145 can be by arranging to configure with the identical paster antenna of remote transmission antenna element 110.Emission control
Unit 190 and reception control unit 195 control transmission signal and reception signal respectively.
However, although remote transmission signal and short range transmission signal are individually exported according to polarization characteristic, in order to true
The detection performance of radar equipment is protected, it is necessary to maintain the quantity of channel.Therefore, in order to maintain, two short ranges receive channel and two remote
Journey receives channel, it is necessary to two short range reception antenna units 230 and 235 and two long-range reception antenna units 140 and 145,
And four reception chips are needed altogether for each reception antenna unit.Therefore, even if when the polarization of remote transmission signal is special
When the polarization characteristic of short range of seeking peace transmission signal is configured differently, it is also difficult to reduce hardware installation space.
In order to solve the above problems, the disclosure proposes a kind of quantity of reception chip that can reduce radar equipment and reduction
The method and apparatus that hardware installation space maintains the channel of identical quantity simultaneously.
Fig. 3 is the view of the configuration for the radar equipment for illustrating the exemplary embodiment according to the disclosure.
Included according to the radar equipment 300 of the exemplary embodiment of the disclosure：Remote transmission antenna element 310, it includes
Launch one or more remote transmission array antennas of the first polarizing emission signal；Short range transmission antenna unit 320, it includes hair
Penetrate one or more short range emission array antennas of the second polarizing emission signal；Composite array antenna element 330, it includes receiving
Believed by the first polarized reception for reflecting the first polarizing emission signal and the second polarizing emission signal from target respectively to be received
Number and the second polarized reception signal one or more composite array antennas；And signal processing unit 340, it is inclined using first
Reception signal of shaking and the second polarized reception signal detection target.In addition, the first polarized reception signal is configured to relative to second
Polarized reception signal has cross polarization feature.
Reference picture 3, remote transmission antenna element 310, which is launched, forms the transmission signal of narrow visual field (FOV) to detect long-range mesh
Mark.That is, in order to form narrow beam figure on vertically and horizontally, remote transmission antenna element 310 passes through one
Individual or multiple remote transmission array antennas configure.In addition, if it is desired, multiple remote transmission antenna elements 310 can be configured.
When paster antenna is arranged in the vertical direction, with the quantity increase of paster antenna, vertical FOV reduces.Similarly, patch is worked as
When chip antenna is arranged in the horizontal direction, with the quantity increase of paster antenna, horizontal FOV reduces.Therefore, remote transmission day
Line unit 310 includes the submatrix array antenna for arranging multiple paster antennas vertically, and can be horizontally formed multiple subarray days
Line.
For example, remote transmission antenna element 310 is included in two or more subarray days of identical microstrip line top set
Line.Signal of the radiation with identical polarization characteristic is each may be configured in two or more submatrix array antennas.Micro-strip
Line is to apply signal, voltage or electric current to the line of each paster antenna and be used as including the art of such as transmission line or feeder line
The implication of language.
Meanwhile short range transmission antenna unit 320 is launched and forms wide FOV transmission signal to detect aim in short distance.For example, it is
Ensure wide FOV in the horizontal direction, short range transmission antenna unit 320 can be by than remote transmission antenna element 310
The submatrix array antenna of the smaller quantity of the quantity of submatrix array antenna configures.
The transmission signal of remote transmission antenna element 310 and the transmitting of short range transmission antenna unit 320 with polarization characteristic.Far
Journey transmission antenna unit 310 can launch the first polarizing emission signal, and short range transmission antenna unit 320 can launch second
Polarizing emission signal.For example, as described with reference to Figure 2, the first polarizing emission signal and the second polarizing emission signal can have 90
The polarization characteristic of degree is poor.For example, the first polarizing emission signal has vertical polarization characteristic, the second polarizing emission signal has level
Polarization characteristic.As another example, the first polarizing emission signal has 45 degree of left polarization characteristics, and the second polarizing emission signal has
45 degree of right polarization characteristics.In addition, the first polarizing emission signal and the second polarizing emission signal have cross polarization feature.Intersect inclined
Shake and refer to the polarized component perpendicular to specific polarization component and mean that the difference of the polarization characteristic between two kinds of signals is 90 degree.
Meanwhile composite array antenna element 330 can be received by reflecting the first polarizing emission signal from target to be connect
The the first polarized reception signal received.In addition, composite array antenna element 330 can also be received by being polarized from target reflection second
Transmission signal and the second polarized reception signal received.Connect therefore, composite array antenna element 330 includes the polarization of reception first
Collect mail number and one or more composite array antennas of both the second polarized reception signals.
Composite array antenna is included in two or more submatrix array antennas of identical microstrip line top set, two or more
Signal of the reception with different polarization feature is each may be configured in individual sub- array antenna.That is, composite array
Antenna includes multiple submatrix array antennas from a microstrip line branch.In at least one in multiple submatrix array antennas, paster
Antenna, which is arranged to, receives the first polarized reception signal, and in remaining submatrix array antenna, paster antenna is arranged to reception
Second polarized reception signal.That is, a composite array antenna may be configured to receive two with 90 degree of polarization differences
Individual signal.In the following description, first will be described as by being configured to receive the submatrix array antenna of the first polarized reception signal
Polariton array antenna, and the submatrix array antenna for being configured to receive the second polarized reception signal will be described as the second polarization
Submatrix array antenna.
Meanwhile signal processing unit 340 can be detected using the first polarized reception signal and the second polarized reception signal
Remote object and aim in short distance.Therefore, signal processing unit 340 can include signal distributions device, even if when the first polarized reception
When both signal and the second polarized reception signal are received by a composite array antenna, the signal distributions device individually processing the
One polarized reception signal and the second polarized reception signal.For example, even if when two or more letters with cross polarization feature
When number being received by composite array antenna, can also using the signal distributions device of such as circulator distributor come handle two or
More signals.
Hereinafter, describe in detail with reference to the accompanying drawings has cross polarization feature using above-mentioned composite array antenna processing
Signal radar equipment configuration and operation.
Fig. 4 is to illustrate to polarize the radar equipment with horizontal polarization vertically according to the use of the exemplary embodiment of the disclosure
The view of structure.
Reference picture 4, two composite array antennas can be included according to the radar equipment 300 of the exemplary embodiment of the disclosure
430 and 440.In addition, radar equipment 300 includes a remote transmission array antenna 410 and a short range emission array antenna
420.However, this is for the ease of description, and remote transmission array antenna 410, short range emission array antenna 420 and compound
The quantity not limited to this of array antenna 430 and 440.Meanwhile radar equipment 300 includes the emission controlling unit of control transmission signal
490 and processing reception signal reception control unit 495.Reception control unit 495 can perform above-mentioned signal processing unit 340
Function.
Remote transmission array antenna 410 includes four sub- array antennas 411,412,413 and 414 for realizing narrow FOV.Four
Branch point 450 of the submatrix array antenna 411,412,413 and 414 from identical microstrip line is branched to be polarized with exporting identical first
Transmission signal.Short range emission array antenna 420 includes a sub- array antenna for realizing wide FOV in the horizontal direction.Meanwhile closely
Second polarizing emission signal of the output of journey emission array antenna 420 with horizontal polarization feature.Therefore, in remote transmission array day
In line 410 and short range emission array antenna 420, paster antenna is arranged to export the transmission signal with cross polarization feature.
In addition, as depicted in figs. 1 and 2, it can include passing through according to the radar equipment 300 of the exemplary embodiment of the disclosure
Configuration four receives channel to maintain the two of detection performance composite array antennas 430 and 440.Specifically, the first composite array
Antenna 430 includes two the first polariton array antennas 431 and 433 and a second polariton array antenna 432.First is inclined
Oscillator array antenna 431 and 433 receives the first polarized reception signal and the second polariton array antenna 432 receives the second polarization
Reception signal.Therefore, in the first polariton array antenna 431 and 433, paster antenna can by with remote transmission antenna
410 identical arrangements are arranged.In addition, in the second polariton array antenna 432, paster antenna can by with short range
Transmitting antenna 420 identical arrangement is arranged.It is similar with the first composite array antenna 430, the second composite array antenna 440
Including two the first polariton array antennas 441 and 443 and a second polariton array antenna 442.
Meanwhile first polariton array antenna 431 and 433 or 441 and 443 and the second polariton array antenna 432 or
442 may be configured to from the branch of branch point 451 or 453 on identical microstrip line.
By doing so it is possible, both the first polarized reception signal and the second polarized reception signal are by a composite array antenna
430 or 440 receive.Allow to configure in addition, the second polarized reception signal is received by two composite array antennas 430 and 440
Two channels.Similarly, the first polarized reception signal is also received by two composite array antennas 430 and 440 and allows to configure
Two channels.Therefore, altogether four are realized as depicted in figs. 1 and 2 according to the radar equipment 300 of the exemplary embodiment of the disclosure
Individual channel, and allow to hardware space of the reduction for reception chip using two composite array antennas, while only pass through two
Individual reception chip suppresses the deterioration of radar performance.By doing so it is possible, the miniaturization of radar equipment can be realized.
Although the quantity of the submatrix array antenna of composite array antenna 430 and 440 is described as example, submatrix array antenna
Quantity not limited to this.
Fig. 5 is illustrated according to the circulator for composite array array signal processing of the exemplary embodiment of the disclosure point
The view of the structure of orchestration.
Used as described above, being received according to the radar equipment of the exemplary embodiment of the disclosure by a composite array antenna
In the first polarized reception signal of remote detection and both the second polarized reception signal for short range detection.Accordingly, it is possible to need
Individually to handle the configuration of the first polarized reception signal and the second polarized reception signal.
Reference picture 5, circulator distributor are configured by three input ports and a delivery outlet.Referring again to Fig. 4, first
The signal of polariton array antenna 431 is input to the defeated of circulator distributor of the configuration in the first composite array antenna 430
Entrance 1 (input 1).The signal of second polariton array antenna 432 is input to input port 2 (input 2).First polarization subarray
The signal of antenna 433 is input to input port 3 (input 3).First polariton array antenna and the second polariton array antenna point
Jie Shou not have the first polarized reception signal and the second polarized reception signal of cross polarization feature so that even if when the first polarization
When same time is received, circulator distributor individually exports the first polarized reception for reception signal and the second polarized reception signal
Signal and the second polarized reception signal.For example, the first polarized reception signal with identical polarization characteristic is in input port 1 and input
Received at mouth 3 to be output to delivery outlet.Input port 1 and input port 3 are spaced apart with identical interval with delivery outlet with by
One polarized reception signal is as a signal output.On the contrary, the second polarized reception signal is input to input port 2.The He of input port 2
The difference of the distance between delivery outlet and input port 1 or the distance between 3 and delivery outlet is half-wavelength.Therefore, a reception chip
It is remote to detect that the first polarized reception signal and the second polarized reception signal are handled using the signal for being output to a delivery outlet
Journey target and aim in short distance.For convenience of description, disclose circulator distributor as an example, and circulator distributor it is defeated
The quantity of entrance can change according to the quantity of the submatrix array antenna of composite array antenna.
Fig. 6 is the view for the structure for illustrating the composite array antenna according to the exemplary embodiment of the disclosure.
Reference picture 6, one of composite array antenna be present includes the first polariton array antenna 620 and 630 and the
Another example of two polariton array antennas 610.I.e., in Fig. 4, although the second polariton array antenna 432 of description or 442
As an example, still the second polariton array antenna 610 between the first polariton array antenna 431 and 433 or 441 and 443
Side can be configured in.
Meanwhile first the quantity of polariton array antenna 620 and 630 can be equal to or more than the second polariton array antenna
610 quantity.Remote transmission antenna includes being used for the multiple submatrix array antennas for realizing narrow FOV.Therefore, in order to receive by long-range
First polarized reception signal of the first polarizing emission signal of transmitting antenna transmitting, the first polariton array antenna 620 and 630
Quantity can be more than the quantity of the second polariton array antenna 610.
Meanwhile when implementing two or more composite array antennas in radar equipment, in order to by realize narrow FOV come
Remote object is detected, it is necessary to by the distance maintaining between reception channel equal to or higher than predeterminated level.On the contrary, in order to pass through reality
Show wide FOV to detect aim in short distance, it is necessary to by the interval holding between reception channel equal to or less than predeterminated level.Therefore,
When configuring two or more composite array antennas, in the radar equipment according to the exemplary embodiment of the disclosure, submatrix
Array antenna can be set as shown in Figure 7.
Fig. 7 is to illustrate to be regarded according to what the submatrix array antenna of the composite array antenna of the exemplary embodiment of the disclosure was arranged
Figure.
Reference picture 7, when composite array antenna element includes two or more composite array antennas, composite array antenna
In each include the first polariton array antenna group 710 and 740 and the second polariton array antenna group 720 and 730.This
Outside, the distance between first polariton array antenna group 751 can be equal to or more than between the second polariton array antenna group
Distance 750.
For example, configuration in a composite array antenna with receive the first polarized reception signal two or more first
Polariton array antenna 710 and configuration are in another composite array antenna to receive two of the first polarized reception signal or more
Multiple first polariton array antennas 740 are spaced apart from each other preset distance 751.In addition, configuration is in a composite array antenna
To receive the second polariton of one or more array antenna 720 of the second polarized reception signal and configuration in another composite array
It is spaced apart from each other pre- spacing in antenna with receiving the second polariton of one or more array antenna 730 of the second polarized reception signal
From 750.In this case, the interval 751 between the first polariton array antenna group can be equal to or more than the second polariton
Interval 750 between array antenna group.
Meanwhile when narrow FOV is carried out to detect remote object, it can significantly generate secondary lobe.Detection can be used near
The wave beam waveform of journey mesh target transmission signal reduces secondary lobe.
The first polarizing emission signal and the first polarized reception signal, which is described above, has vertical polarization characteristic, and
Second polarizing emission signal and the second polarized reception signal have horizontal polarization feature.In fig. 8,45 degree of left avertences be will be described with
The example of feature of shaking and 45 degree of right polarization characteristics.
Fig. 8 is regarding for the structure for the radar equipment for illustrating 45 degree of polarizations of use according to the exemplary embodiment of the disclosure
Figure.
Reference picture 8, remote transmission signal and short range transmission signal are configured to cross polarization feature.It is for example, long-range
Transmission antenna unit 810 can include one or more that wherein configuration is arranged to the paster antenna with 45 degree of right polarization characteristics
Individual sub- array antenna.In short range transmission antenna unit 820, the paster day for being arranged to 45 degree of left polarization characteristics can be configured
Line.Transmission signal with 45 degree of right polarization characteristics and the transmission signal with 45 degree of left polarization characteristics show 90 degree of polarization characteristics
Difference so that transmission signal has cross polarization feature.
In addition, each composite array antenna 830 or 840 includes receiving the first polarized reception with 45 degree of right polarization characteristics
First polariton array antenna of signal and the second polarization for receiving the second polarized reception signal with 45 degree of left polarization characteristics
Submatrix array antenna, two transmission signals individually polarized are received will pass through a composite array antenna 830 or 840.Meanwhile it is
Maintain the interval between channel, the first polariton array antenna group of composite array antenna 830 and composite array antenna 840
First polariton array antenna group is configured to be spaced apart from each other.In addition, the second polarization subarray day of composite array antenna 830
Line group and the second polariton array antenna group of composite array antenna 840 are configured to close to each other.
Meanwhile control the emission controlling unit 890 of transmission signal and the reception control unit 895 of processing reception signal can be with
It is connected to each other by local line.
As described above, the disclosure provides a kind of radar equipment, its launch transmission signal with different polarization feature and
Receive the reception signal with different polarization feature reflected from target to be received by a composite array antenna.In addition,
The quantity of identical reception channel may insure according to the radar equipment of the exemplary embodiment of the disclosure while reduce compound matrices
The quantity of array antenna.By doing so it is possible, the quantity for reducing the reception chip for being directed to each antenna configuration make it that radar can be reduced
Size maintains Studies of Radar Detection performance simultaneously.In addition, each reception signal has cross polarization feature so that signal interference can drop
It is extremely minimum.
Hereinafter, with reference to the accompanying drawings description perform according to the radar equipment of the exemplary embodiment of the disclosure it is all on
State the method for processing radar signals of operation.
Fig. 9 is the view for illustrating the method for processing radar signals of the exemplary embodiment according to the disclosure.
Included according to the method for processing radar signals of the exemplary embodiment of the disclosure：Transmission signal step of transmitting, it makes
Launch the first polarizing emission signal with one or more remote transmission array antennas and use one or more short range emission arrays
Antenna launches the second polarizing emission signal；Reception signal receiving step, it is received by from mesh by composite array antenna
Mark reflects the first polarizing emission signal and the second polarizing emission signal and the first polarized reception signal received and second polarizes
Reception signal；And detecting step, it uses the first polarized reception signal and the second polarized reception signal detection target.In addition,
First polarized reception signal has cross polarization feature relative to the second polarized reception signal.
Reference picture 9, method for processing radar signals are inclined including the use of the transmitting first of one or more remote transmission array antennas
Transmission signal of shaking and the transmission signal transmitting for launching the second polarizing emission signal using one or more short range emission array antennas
Step (S900).In transmission signal step of transmitting, the long-range hair for being configured to signal of the output with different polarization feature is used
Array antenna and short range emission array antenna are penetrated to launch the first polarizing emission signal and the second polarizing emission signal.First polarization
Transmission signal and the second polarizing emission signal can have cross polarization feature.In addition, remote transmission array antenna can have
Two or more submatrix array antennas are to implement narrow FOV features.Short range emission array antenna can have one or more submatrixs
Array antenna is to implement wide FOV features.The quantity of the submatrix array antenna of short range emission array antenna can be less than remote transmission array
The quantity of the submatrix array antenna of antenna.
In addition, method for processing radar signals includes receiving by inclined from target reflection first by a composite array antenna
Transmission signal of shaking and the second polarizing emission signal and the first polarized reception signal for being received and the second polarized reception signal connect
Collection of letters receiving step (S902).During reception signal receiving step, the first polarization is received using a composite array antenna
Both reception signal and the second polarized reception signal.In this case, the first polarized reception signal and the second polarized reception letter
Number there is cross polarization feature.For example, the first polarized reception signal has vertical polarization characteristic, the second polarized reception signal has
Horizontal polarization feature.In addition, composite array antenna include being used to receive two of all signals with different polarization feature or
More submatrix array antennas.For example, composite array antenna can be included in the first polarization subarray of identical microstrip line top set
Antenna and the second polariton array antenna.First polariton array antenna can include being arranged to receive the first polarized reception signal
Paster antenna, and the second polariton array antenna can include be arranged to receive the second polarized reception signal paster day
Line.Second polariton array antenna can be arranged between the first polariton array antenna or be arranged on side.
In addition, when two or more composite array antennas are carried out, between the first polariton array antenna group between
Interval between it can be set to be greater than the second polariton array antenna group.The quantity of first polariton array antenna is more than the
The quantity of two polariton array antennas so that the FOV for being adapted to detect for remote object and aim in short distance can be realized.
In addition, method for processing radar signals is including the use of the first polarized reception signal and the second polarized reception signal detection mesh
Target detecting step (S904).During detecting step, remote object and aim in short distance can use and pass through a composite array
The the first polarized reception signal and the second polarized reception signal that antenna receives detect.Therefore, during detecting step, long-range mesh
Mark and aim in short distance can utilize to be detected using a reception chip of such as signal distributor of circulator distributor.It is optional
Ground, during detecting step, remote object and aim in short distance can use first received by a composite array antenna inclined
The polarization characteristic of reception signal of shaking and the second polarized reception signal individually detects.
As described above, according to the disclosure, for detecting the signal of remote object and signal quilt for detecting aim in short distance
It is configured to that there is different polarization characteristics to handle reception signal using a reception antenna.In addition, according to the disclosure, use
One reception antenna processing reception signal causes the channel of identical quantity to be maintained while reduces reception antenna.In addition, according to this
It is open, reduce the size of radar equipment while identical performance is provided.
Although all parts of the exemplary embodiment of the disclosure can be combined as a part or operation to be combined,
It is that the disclosure is not limited to exemplary embodiment.In other words, in the range of the purpose of the disclosure, one in all parts or
It is multiple optionally to combine to operate.It will be appreciated that there have been described herein each exemplary embodiment of the disclosure
For the purpose of explanation, and in the case where not departing from the scope of the present disclosure and spirit, those skilled in the art can enter
The various modifications of row, change and replace.The protection domain of the disclosure should be explained based on appended claims, and in its grade homotype
All technical schemes in enclosing should be interpreted to fall within the scope of the disclosure.
Claims (16)
1. a kind of radar equipment, it includes：
Remote transmission antenna element, it includes the one or more remote transmission array antennas for launching the first polarizing emission signal；
Short range transmission antenna unit, it includes the one or more short range emission array antennas for launching the second polarizing emission signal；
Composite array antenna element, it includes receiving by reflecting the first polarizing emission signal and described second inclined from target
Transmission signal of shaking and the first polarized reception signal and one or more composite array days of the second polarized reception signal received
Line；And
Signal processing unit, it uses mesh described in the first polarized reception signal and the second polarized reception signal detection
Mark,
Wherein described first polarized reception signal has cross polarization feature relative to the second polarized reception signal.
2. radar equipment according to claim 1, wherein the first polarizing emission signal is relative to the described second polarization
Transmission signal has cross polarization feature.
3. radar equipment according to claim 1, wherein the remote transmission array antenna includes being configured to identical
Each spoke in two or more submatrix array antennas of microstrip line top set and described two or more sub- array antennas
Penetrate the signal with identical polarization characteristic.
4. radar equipment according to claim 1, wherein the composite array antenna includes being configured in identical micro-strip
Each in two or more submatrix array antennas of line top set and described two or more sub- array antennas is configured
Into signal of the reception with different polarization feature.
5. radar equipment according to claim 4, wherein described two or more sub- array antennas are included described in reception
One or more the first polariton array antenna of first polarized reception signal and the one of reception the second polarized reception signal
Individual or multiple second polariton array antennas.
6. radar equipment according to claim 5, wherein the quantity of the first polariton array antenna is equal to or more than
The quantity of the second polariton array antenna.
7. radar equipment according to claim 1, wherein when the composite array antenna element includes two or more
During composite array antenna, each in the composite array antenna includes the first polariton array antenna group and the second polariton
The distance between array antenna group and the first polariton array antenna group are equal to or more than the described second polarization subarray day
The distance between line group.
8. a kind of method for processing radar signals, it includes：
Transmission signal step of transmitting, it is launched the first polarizing emission signal using one or more remote transmission array antennas and made
Launch the second polarizing emission signal with one or more short range emission array antennas；
Reception signal receiving step, it is received by reflecting first polarizing emission from target by a composite array antenna
Signal and the second polarizing emission signal and the first polarized reception signal and the second polarized reception signal received；And
Detecting step, it uses target described in the first polarized reception signal and the second polarized reception signal detection,
Wherein described first polarized reception signal has cross polarization feature relative to the second polarized reception signal.
9. method for processing radar signals according to claim 8, wherein the first polarized reception signal is included in institute
One or more of composite array antenna the first polariton array antenna received is stated, and
The second polarized reception signal is included in one or more of described composite array antenna second and polarizes subarray
Antenna receives.
10. method for processing radar signals according to claim 8, wherein during the detecting step, pass through described one
The the first polarized reception signal and the second polarized reception signal that individual composite array antenna receives use polarization characteristic quilt
Separation, and
Using the first polarized reception signal to detect remote object, and detected using the second polarized reception signal
Aim in short distance.
11. a kind of radar equipment, it includes：
First composite array antenna element, it includes the first polariton array antenna group and the second polariton array antenna group,
The one or more first that the first polariton array antenna group includes receiving the first polarized reception signal polarizes subarray day
Line, the one or more second that the second polariton array antenna group includes receiving the second polarized reception signal polarize subarray
Antenna；And
Second composite array antenna element, it includes the first polariton array antenna group and the second polariton array antenna group,
The one or more first that the first polariton array antenna group includes receiving the first polarized reception signal polarizes subarray day
Line, the one or more second that the second polariton array antenna group includes receiving the second polarized reception signal polarize subarray
Antenna,
First polariton array antenna group of wherein described first composite array antenna element and the second composite array antenna
Second of the distance between first polariton array antenna group of unit than the first composite array antenna element polarizes submatrix
Array antenna group and the distance between the second polariton array antenna group of the second composite array antenna element are long.
12. radar equipment according to claim 11, wherein the first polariton of the first composite array antenna element
Array antenna group and the first polariton array antenna group of the second composite array antenna element are configured to be spaced apart from each other
And the second polariton array antenna group and the second composite array antenna element of the first composite array antenna element
Second polariton array antenna group is configured to close to each other.
13. radar equipment according to claim 11, including the first of the first composite array antenna element
The quantity of the first polariton array antenna in polariton array antenna group is more than and is included in the first composite array day
The quantity of the second polariton array antenna in second polariton array antenna group of line unit.
14. radar equipment according to claim 11, including the first of the first composite array antenna element
The first polariton array antenna in polariton array antenna group and it is included in the first composite array antenna element
The second polariton array antenna in second polariton array antenna group is branched on identical microstrip line.
15. radar equipment according to claim 11, wherein the first polarized reception signal is inclined relative to described second
Reception signal of shaking has cross polarization feature.
16. radar equipment according to claim 11, it further comprises：
Emission array antenna element, it includes remote transmission array antenna group and short range emission array antenna sets, described long-range
Emission array antenna sets include one or more remote transmission array antennas of the first polarizing emission signal of transmitting, the short range hair
Penetrating array antenna group includes one or more short range emission array antennas of the second polarizing emission signal of transmitting.
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| KR10-2016-0076250 | 2016-06-20 | ||
| KR1020160076250A KR102589762B1 (en) | 2016-06-20 | 2016-06-20 | Radar apparatus and Method for processing radar signal |
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| US (1) | US10578707B2 (en) |
| KR (1) | KR102589762B1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107526063B (en) | 2021-03-09 |
| US10578707B2 (en) | 2020-03-03 |
| KR20170142560A (en) | 2017-12-28 |
| US20170363713A1 (en) | 2017-12-21 |
| KR102589762B1 (en) | 2023-10-17 |
| DE102017210137A1 (en) | 2017-12-21 |
| DE102017210137B4 (en) | 2023-07-27 |
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